Need help converting dumb switches; one w/o any lights, one w/ Hue bulbs
Need help converting dumb switches; one w/o any lights, one w/ Hue bulbs
I'm looking for a smart home solution use two switches in my living room (EU), in order to make them just smart enough so I can control some devices. The setup isn't very complex in itself, and I'm pretty sure it's doable - I'm just unsure what I'd need in order to use these switches in a 'smart' capacity...
This is what I had in mind:
- On-off switch, connected to a single light with three Hue filament bulbs. I'd like this one to always be powered, as to make them always controllable
- On-off switch, which should be connected to a light which isn't in use at all. Once this one is 'smart', I could control all other smart devices in the living room like a 'turn off everything'-button.
I have a Hue bridge and a Home Assistant instance running in my home.
With regards to wife-approval-factor, I'd rather leave the original switches in place, but I'm open to suggestions. I hope one of you can steer me in the right direction.
Edit: if this isn't the right community for the question, I'd understand, but I wasn't sure where to put it otherwise... I'd be open to suggestions to that too.
I bought Shelly relays. These fit behind existing switches so you can keep the originals. They can tie into Home Assistant.
+1 for shelly or sonoff
I've come across Shelly relays as well, they seem like a viable option to me. I'd probably prefer a separated network like Zigbee, but that should be doable. Thanks!
You can do this with Shelly Zwave relays.
That would generally preferable to ZigBee for such a system from an RF perspective.
Aeotec or Zooz usb dongle on your server, every Shelly acts as a signal relay.
You can get zigbee 3.0 relays on aliexpress. I got the GIRIER store ones, but while I've done a test with a bulb and a switch on a board, I haven't gotten them properly installed yet. Seems promising tho.
How do you deal with grounding? None of them seem to have ground pins which is rather concerning
May I ask why grounding is concerning? Im not expert, but afaik normal wall switches dont use ground wire and ceiling lights may use one. I thought if wall switch is made of plastic there is no need for grounding. Please correct me if Im wrong, I want to learn. I was looking at sonoff zbmini-l2, but didnt buy any yet
There's nothing for a ground pin to be connected to, the case is plastic.
The bigger issue is that a lot of light switches also lack a neutral connection. They have live, and switched live. You can get devices to allow them to scavenge power, but they can also cause led bulbs to glow dimly.
You don't need to ground your Shelly if the circuit is otherwise properly grounded. The Shelly will fail open if something internal shorts.
Per the rest of the discussion re: hot wire loops to switches with no neutral or ground, just put the Shelly into the upstream junction box. (Wherever the switch wire branches from the circuit. Usually that's where the light is.)
In the UK most lights don't have a live, neutral and earth wires. Which is a pain when looking for smart switches
Thats interesting. I would assume ground is important for metal devices since they can shock you but what would be the risk of a plastic device without grounding be?
You don’t say if you have any IoT networks yet, like zwave or zigbee, or if you’re looking for wifi. All have advantages / disadvantages, wifi is cheap and doesn’t use a separate dongle, zigbee devices tend to be cheaper, and a good variety available, Zwave is solid and doesn’t conflict with wifi or zigbee networks.
For the Hue bulbs you want a switch that lets you disconnect the relays from the physical switch. I don’t know what devices to suggest for EU, but my preference is to make the switches smart so they continue to do switch-like-things instead of having to retrain people.
Well, I did mention the Hue bridge so I've got Zigbee around the house (as well as some other Tuya wifi devices).
I'm currently in the process of converting to an additive setup so my wife and I don't need a smartphone to do smart home stuff. I think I can work with the info, thanks a lot.
One of the features you might look for is, I don’t remember what it’s called, but direct pairing? I’m a big fan of Inovelli switches here in the US and this is one of the features I love, even though I don’t use it yet. You can configure the switch to always pass power, but act as a Zigbee/zwaveJS button, depending on which switch, then you can set up automation at your hub to take some action. However this goes a step further in that you can directly pair it with the smart bulbs, to control them directly.